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Biology 111 chapter 13

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    Gametes are produced by _____________.
    Normal human gametes carry _____ chromosomes.
    Once Meiosis I is completed, all the cells are
    A diploid organism whose somatic (nonsex) cells each contain 32 chromosomes produces gametes containing _____ chromosomes.
    Meiosis II begins with 2 _________ cells
    Meiosis I produces _____ cells, each of which is _____.
    two, halpoid
    Meiosis II typically produces _____ cells, each of which is _____.
    four, haploid
    During _____ sister chromatids separate.
    Anaphase II
    At the end of _____ and cytokinesis, haploid cells contain chromosomes that each consist of two sister chromatids.
    Telophase I
    Homologous chromosomes pair during _________
    Prophase I
    Synapsis occurs during _____.
    Prophase I
    Homologous chromosomes migrate to opposite poles during _____.
    Anaphase I
    During _____ chromosomes align single file along the equator of a haploid cell.
    Metaphase II
    During _____ a spindle forms in a haploid cell.
    Prophase II
    A human somatic cell contains _____
    44 autosomes and 2 sex chromosomes
    In alternation of generations, the diploid stage of a plant that follows fertilization is the _____.
    Mitosis results in the formation of _____
    two diploid cells
    Meiosis results in the formation of ______
    two haploid cells
    Crossing over is _____.
    the exchange of homologous portions of nonsister chromatids
    Genetic variation occurs when chromosomes are shuffled in _____ and fertilization.
    What is the Haploid Number?
    Diploid number is ______
    What is the result of meiosis
    one set of chromosomes in each gamete
    where they cross over
    What are the only haploid cells in animals
    Sporophyte makes haploid ________ by meiosis
    Each spore grows by mitosis into a haploid organism by called a ________
    Fertilization of gametes results in a ____________
    diploid sporophyte
    The zygote produces haploid cells by ________
    Only ______ cells can go through meiosis
    The two cell divisions result in ________ daughter cells, rather than _________ daughter cells in mitosis
    Each daughter cells has _______ as many chromosomes as the parent cell
    What happens during the first stage of Meiosis
    homologous chromosomes seperate
    What is reductional division?
    meiosis one results in 2 haploid daughter cells
    What is equational division
    Meiosis II results in 4 haploid daughter cells with UNREPLICATED chromosomes
    When does synapsis occur
    Prophase I
    What is a chiasmate?
    where the x-shaped regions where crossing over occured
    Are the two sister chromatids gentically similar during Metaphase II
    What are cohesions?
    protein complexes
    What are alleles
    mutations of genes

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